Department of Fisheries, Beekeeping, Game Management and Special Zoology

Place

Zagreb

State

Croatia

Scientific field, discipline, subdiscipline

BIOTECHNICAL SCIENCESAgronomyFishing

Study programme type

university

Study level

graduate

Study programme

Fisheries and Game Management

Academic title abbreviation

mag. ing. agr.

Genre

master's thesis

Language

Croatian

Defense date

2016-07-07

Parallel abstract (English)

The aim of the present study was to determine the morphometric characteristics of anchovy
(Engraulis encrasicolus, Linnaeus 1758) from different locations of the eastern part of the
Adriatic Sea. The morphological characteristics were determined on 472 individuals collected
from 7 samples in the period from June 2015 to February 25, 2016. Morphological
characteristics that were measured and determined are: six lengths, three heights and body
weight, while meristic characteristics that were counted are rays of dorsal and anal fins. On
the basis of certain morphological characteristics, percentages of measured heights and body
lengths were calculated, in relation to the total body length, head length and maximum height.
Also calculated are the length-weight relationship (WLR) and Fulton's condition coefficient
(K) for the entire population, each sample separately depending on the time of the catch and
by gender. The calculated average weight of the population amounts Wmean=12,58 g ± 2,90 g
SD, and that Wmean ± SD=74,58% of individuals in the population of the value of the average
mass. The average total body length is LTmean=129,28 mm ± 9,563 mm SD. Valuesof the
length-weight relationship are: b=3,0682, a=0,0048, R2=0,9322, r= 0,95. The mean condition
of the population coefficient is Kmean=0,572 ± SD 0,036, ranging from 0,476 to 0,748. For the
entire sample, 70 individuals are determined by gender, in the ratio m/f=0,89, in percentage
52,86% female (37 individuals) and 47,14% male (33 individuals). Females had significantly
greater regression coefficient b =3,6819, while for males, the regression coefficient was b
=3,4755. The number of rays in the dorsal fin ranged from 13 to 14, while rays in the anal and
dorsal fin are ranged from 16 to 17 rays.